That is effectively what the gel-filled plastic capsule is, that now houses the connected cable.
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I did test the results, using appropriate apparatus (my eyes and ears), and as I can detect no degradation, it IS exactly as it should be :)
I'm bracing myself for an education now, when I say surely with this you either have your signal or you don't. when you plug your telly into the wall socket, does the plug not degrade the picture/sound? With all the electrical and signal connections in your hi fi chain, is it not a miracle that you get any music at all? And I have no reason to believe that the connector's materials are inferior to the cable that Sky use.
Btw the ivy isn't really ivy, it's called clematis or something, and it's just gone mental this last few weeks.
I recently had to make a repair to the gable end where the TV aerial and SKY satellite dish are mounted. The TV aerial wasn't too difficult to sort out, but I sure as heck wasn't going to pay SKY around £70 to realign the dish after the wall repair. There is a built-in signal strength meter in the HD box software anyway to make small adjustments to dish alignment.
I decided to take out the 2 bolts that held the dish onto the wall then put 4 new bolts into the correct corner mounting holes and signal strength actually increased when I had finished, even though it was a bastard of a job drilling the holes with the brackets and dish in the way.
Not sure if anyone has mentioned this or not, but the cable(s) also carry 12 volts DC out to the LNB(s) to power them as well as the inbound satellite signals.